The Armstrong Siddeley Serval was a British ten-cylinder aero engine developed by Armstrong Siddeley in the late 1920s.

Following company tradition, the engine was named for the serval.

The Serval was a ten-cylinder, double-row, air-cooled radial piston engine.

[1] Built in several variants, power output was about 340 hp (254 kW).

Serval I initially Double Mongoose Data from Lumsden.